Definition
A pre-established set of written procedures that define how specific flight operations and tasks are to be performed, including normal, abnormal, and emergency situations. SOPs establish standardized actions, callouts, and decision criteria so that every crewmember performs the same task the same way under the same conditions.
Plain English
A fixed, agreed-upon way of doing things, written down in advance, so pilots don't have to make it up on the spot. Everyone follows the same steps in the same order.
Context Anchor
In a rejected takeoff discussion, SOP refers to the planned steps for deciding, announcing, and carrying out a stop when the takeoff should not continue.
Derivation
From 'standard' (a fixed reference or norm) and 'operating procedure' (a sequence of steps for doing a job). The phrase originates in military and industrial use, where having one agreed method prevents confusion and error during high-pressure tasks.
Why Pilots Care
Following SOPs reduces errors and improves safety during high-workload events such as rejected takeoffs.
Intuition Check
SOP does not mean a casual habit or personal preference. In aviation, it means the established procedure the pilot or crew is expected to follow unless safety requires a different action.
Example Sentence 1
The crew briefed the rejected takeoff SOP before taxi, confirming who would call 'abort' and who would handle the controls.
Example Sentence 2
Crews must use the company SOP for every normal takeoff and landing.